CN115972288A

CN115972288A - Cutting device

Info

Publication number: CN115972288A
Application number: CN202211640826.5A
Authority: CN
Inventors: 向猛; 刘怀欣; 石楚道; 何亮
Original assignee: Hunan Keensen Technology Co Ltd
Current assignee: Hunan Keensen Technology Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-18

Abstract

The invention discloses a cutting device, comprising: the negative pressure conveyor comprises a rack and a conveying belt arranged on the rack, the rack is provided with a negative pressure cavity, the negative pressure cavity is provided with a plurality of vent holes, the conveying belt is provided with a plurality of adsorption holes, the adsorption holes are communicated with the inside of the negative pressure cavity through the vent holes, and the conveying belt is provided with a plurality of trigger pieces at intervals; the synchronous moving device comprises a moving device and a cutter, the triggering piece can trigger the moving device to move synchronously with the conveying belt, the cutter is arranged on the moving device, and the cutter moves. According to the invention, the material is adsorbed on the conveying belt in a negative pressure manner, so that extrusion and contamination to the material are avoided, and meanwhile, waste to the material is avoided. In addition, the trigger piece can trigger the moving device to move synchronously with the conveying belt, so that the cutter and the material are relatively static, and the cutter is driven to cut the material on the basis, so that continuous operation is realized.

Description

Cutting device

Technical Field

The invention relates to the field of material cutting, in particular to a cutting device.

Background

The characteristics of two surfaces of materials such as reverse osmosis membranes are different, one surface of the reverse osmosis membrane is a non-woven fabric base material, and the other surface is a working surface (reverse osmosis layer). Reverse osmosis membranes need to be cut from a roll into pieces for subsequent processing or use.

The devices used for cutting materials in the prior art are mostly double-roll counter-pressure devices. The double-roller opposite-pressing device comprises two rollers which are arranged in parallel, materials pass through the middle of the two rollers, the two rollers are pressed against each other through external force and rotate in opposite directions, and therefore the materials are conveyed.

The working surface of the reverse osmosis membrane is fragile, and once the working surface of the reverse osmosis membrane is damaged by extrusion, scratching, perforation, adhesion and the like, the working surface of the reverse osmosis membrane is affected, for example, the salt rejection rate of the reverse osmosis membrane and the light transmittance of an optical film are affected.

If a double-roller counter-pressure device is used for conveying and cutting the reverse osmosis membrane, the double rollers can contact the working surface of the reverse osmosis membrane, the working surface of the reverse osmosis membrane can be damaged by the counter-pressure of the double rollers, and the working surface of the reverse osmosis membrane can be polluted by dirt on the rollers.

In addition, since the position of the cutting blade in the twin-roll counter-pressing device is fixed, and the cutting blade has only a single reciprocating motion in a lifting manner or a single reciprocating motion in a horizontal direction, after a material is conveyed once, the twin-roll needs to be stopped to wait for the cutting blade to finish cutting, so that the twin-roll counter-pressing device is operated discontinuously, and the working efficiency is affected.

In order to solve the problems that the double rollers damage the working surface of the reverse osmosis membrane and dirt on the rollers can stain the working surface of the reverse osmosis membrane, the technical personnel in the field make the following improvements: the roller contacted with the front surface of the reverse osmosis membrane is changed into a step shape, the diameters of two ends of the roller are increased, and only two ends of the roller are contacted with the working surface of the reverse osmosis membrane. And then cutting off the non-important working surfaces on the two sides of the reverse osmosis membrane. However, the method causes material waste, and the problem that the work efficiency is affected due to non-continuous work is still not solved.

Therefore, how to avoid causing the influence to the working face of material, avoid extravagant material simultaneously, but also can realize continuity cutting operation, the key problem that technical staff in the field awaits a urgent need to solve.

Disclosure of Invention

The invention aims to avoid influencing the working surface of materials, avoid wasting the materials and realize continuous cutting operation. In order to achieve the purpose, the invention provides the following technical scheme:

a cutting device, comprising:

the negative pressure conveyor comprises a rack and a conveying belt arranged on the rack, the rack is provided with a negative pressure cavity, the negative pressure cavity is provided with a plurality of vent holes, the conveying belt is provided with a plurality of adsorption holes, the adsorption holes are communicated with the interior of the negative pressure cavity through the vent holes, the adsorption holes are used for adsorbing materials, and a plurality of trigger pieces are arranged on the conveying belt at intervals along the conveying direction of the conveying belt;

the synchronous moving device comprises a moving device and a cutter, the triggering piece can trigger the moving device to move synchronously with the conveying belt, the cutter is arranged on the moving device, and the cutter can move along the width direction of the conveying belt relative to the moving device.

Preferably, the moving device is provided with a telescopic piece, and the telescopic piece is telescopic along the direction close to and far away from the conveying belt; the trigger part is along the width direction of conveyer belt stretches out the lateral part of conveyer belt when the extensible member is in the extension state, the trigger part can touch the extensible member and pass through the extensible member drives the mobile device removes the cut-off knife accomplishes the back of cutting, the extensible member withdrawal.

Preferably, the synchronous moving device comprises a slide rail, the slide rail extends along the conveying direction of the conveying belt, a slide block is matched on the slide rail, and the moving device is connected to the slide block.

Preferably, be provided with a plurality of cutter way boards on the conveyer belt interval, the cutter way board along the width direction of conveyer belt extends, be provided with the bar groove on the cutter way board, the bar groove along the width direction of conveyer belt extends, the confession of bar groove the cut-off knife inserts, the at least one end of cutter way board stretches out outside the conveyer belt, forms trigger.

Preferably, two ends of the cutter board extend out of the conveyor belt respectively to form two triggering parts, two telescopic parts are arranged on the moving device, and the two triggering parts can be matched with the two telescopic parts respectively.

Preferably, the cutting device further comprises a reset device, and after the cutting knife finishes cutting, the reset device can push the moving device to the original position.

Preferably, a first driving device is arranged on the moving device, an output end of the first driving device can output reciprocating movement along the width direction of the conveying belt, and the cutting knife is connected to the output end of the first driving device.

Preferably, the output end of the second driving device can output reciprocating movement close to and far away from the conveying belt, the cutting knife is connected to the output end of the second driving device, and the second driving device is connected to the output end of the first driving device.

Preferably, the conveyer belt is of an annular structure, the synchronous moving device is arranged below the negative pressure conveyer, a blanking area is formed at the tail end of the part, located below, of the conveyer belt, and the part, corresponding to the blanking area, of the rack is not provided with the vent hole.

Preferably, a blowing device is arranged in a part of the rack corresponding to the blanking area, and the blowing device is used for blowing air to the part of the conveying belt positioned in the blanking area

Preferably, the conveyer belt is annular, the synchronous moving device is arranged above the negative pressure conveyer, the tail end of the part of the conveyer belt above the conveyer belt forms a discharging area, and the part of the rack corresponding to the discharging area is not provided with the vent hole.

It can be seen from the above technical solution that: according to the invention, the material is adsorbed on the conveying belt in a negative pressure manner, so that extrusion and contamination to the material are avoided, and meanwhile, the waste of the material is avoided. In addition, the trigger piece can trigger the moving device to move synchronously with the conveying belt, namely trigger the cut-off knife to move synchronously with the material, so that the relative rest of the cut-off knife and the material is realized, and the cut-off knife is driven to cut the material on the basis. Obviously, the operation of the negative pressure conveyor does not need to be stopped in the process that the material is cut by the cutter, so that the continuity of operation is ensured, and the operation efficiency is improved.

Drawings

In order to more clearly illustrate the solution of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive effort.

Fig. 1 is a schematic overall structure diagram of a cutting device according to an embodiment of the present invention;

FIG. 2 is an isometric view of a cutter device provided in accordance with an embodiment of the present invention;

FIG. 3 is a front view of a cutting device according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a conveyor belt according to an embodiment of the present invention;

FIG. 5 is a top view of a cutting device according to an embodiment of the present invention;

FIG. 6 is a bottom view of a cutting device according to an embodiment of the present invention;

FIG. 7 is a side view of a cutting device according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of the uncut front telescoping piece and trigger piece according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of the extendable member and the trigger member during cutting according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of a cutting device for cutting according to an embodiment of the present invention;

fig. 11 is a schematic view of an overall structure of a cutting device according to an embodiment of the present invention.

Wherein, 1 is the frame, 2 is the negative pressure pipeline interface, 3 is the material, 4 is the trigger piece, 5 is the mobile device, 6 is the slide rail, 7 is the blanking, 8 is the extensible member, 9 is the conveyer belt, 10 is the bar groove, 11 is the absorption hole, 12 is resetting means, 13 is the cut-off knife, 14 is the board of cutter way.

Detailed Description

The invention discloses a cutting device which can avoid influencing the working surface of materials, avoid wasting the materials and realize continuous cutting operation.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-11.

The cutting device comprises a negative pressure conveyor and a synchronous moving device. The negative pressure conveyor comprises a frame 1 and a conveyor belt 9. The conveyor belt 9 is arranged on the frame 1. The frame 1 is provided with a negative pressure cavity, and the cavity wall of the negative pressure cavity is provided with a plurality of vent holes. The conveyer belt 9 is provided with a plurality of adsorption holes 11, and the adsorption holes 11 are communicated with the inside of the negative pressure cavity through vent holes. Inside negative pressure that forms of negative pressure cavity, adsorption hole 11 forms the negative pressure adsorption affinity to live material 3 adsorbs, so just fix material 3 on conveyer belt 9. The wall of the negative pressure cavity is also provided with a negative pressure pipeline interface 2, and the negative pressure pipeline interface 2 is communicated with a negative pressure device. Belt pulleys are further arranged at two ends of the rack 1 and used for driving the conveying belt 9 to move. Along the conveying direction of the conveying belt 9, a plurality of triggering parts 4 are arranged on the conveying belt 9 at intervals.

The synchronous moving device comprises a moving device 5 and a cutting knife 13. The triggering element 4 can trigger the movement device 5 to move synchronously with the conveyor belt 9. A cutter 13 is provided on the moving device 5, and the cutter 13 is reciprocally movable on the moving device 5 along the width direction of the conveyor belt 9 with respect to the moving device 5 to complete cutting.

According to the invention, the material 3 is adsorbed on the conveyer belt 9 in a negative pressure manner, so that extrusion and contamination to the material 3 are avoided, and waste to the material 3 is avoided. In addition, the invention can trigger the moving device 5 to move synchronously with the conveying belt 9 through the trigger piece 4, namely trigger the cut-off knife 13 to move synchronously with the material 3, thereby realizing the relative rest of the cut-off knife 13 and the material 3, and driving the cut-off knife 13 to cut the material 3 on the basis. Obviously, the operation of the negative pressure conveyor does not need to be stopped during the cutting process of the material 3 by the cutter 13, so that the continuity of the operation is ensured, and the operation efficiency is improved.

The trigger 4 may be a transmitter of a sensor, and a receiver of the sensor is correspondingly disposed on the synchronous moving device, and along with the operation of the conveyor belt 9, when the generator of the sensor moves above the synchronous moving device, the receiver of the sensor receives a signal of the transmitter of the sensor and sends a start signal to the controller, the controller controls the moving device 5 to move, and the moving speed of the moving device 5 is equal to the moving speed of the conveyor belt 9, so as to achieve synchronous moving.

In the embodiment of the present invention, the triggering member 4 is a rod-shaped or plate-shaped structure, and the triggering member 4 extends out of the conveying belt 9 along the width direction of the conveying belt 9. The moving device 5 is provided with a telescopic member 8, and the telescopic member 8 can be extended and contracted in a direction approaching to and departing from the conveying belt 9. When the extensible member 8 is in the extension state, along with the movement of the conveyer belt 9, the trigger member 4 can touch the extensible member 8 and abut against the extensible member 8, and the extensible member 8 drives the moving device 5 to move, so that the moving device 5 and the conveyer belt 9 can move synchronously. The cutter 13 on the moving device 5 then moves along the width direction of the conveyor belt 9, thereby completing the cutting of the material 3. The telescopic elements 8 are then retracted and the synchronous movement between the moving device 5 and the conveyor belt 9 is released. The moving means 5 then returns to the home position waiting to be triggered by the next trigger 4. Compared with the sensor triggering synchronous movement, the triggering mode in the embodiment is more reliable, and the synchronous precision is higher.

Along the conveying direction of the conveying belt 9, the distance between two adjacent trigger pieces 4 is equal, and meanwhile, the conveying speed of the conveying belt 9 and the cutting speed of the cutting knife 13 are constant, so that the cut materials 3 can be ensured to be equal in length.

The synchronous moving device further comprises a slide rail 6, which slide rail 6 extends in the conveying direction of the conveyor belt 9. The slide rail 6 is matched with a slide block, and the moving device 5 is connected to the slide block. The arrangement of the slide rail 6 can ensure that the mobile device 5 moves strictly in a straight line, thereby ensuring the smoothness of the movement of the mobile device 5.

A plurality of cutter boards 14 are arranged on the conveying belt 9 at intervals, the cutter boards 14 extend along the width direction of the conveying belt 9, strip grooves 10 are arranged on the cutter boards 14, the strip grooves 10 also extend along the width direction of the conveying belt 9, and the strip grooves 10 are used for being inserted by cutters 13. When the cutter 13 cuts the material 3, the tip of the cutter 13 extends into the strip-shaped groove 10, so that the cutting of the cutter 13 is facilitated.

At least one end of the blade plate 14 protrudes beyond the conveyor belt 9 to form the trigger 4. The part of the board 14 extending outside the conveyor belt 9 will touch and abut against the telescopic elements 8 on the moving device 5.

The front side of the part of the blade plate 14 that protrudes outside the conveyor belt 9, i.e. the front side of the triggering part 4, will abut against the telescopic part 8 in the direction of movement of the conveyor belt 9. Therefore, the position of the telescopic piece 8 and the position of the cutting knife 13 are reasonably arranged, so that the cutting knife 13 can be smoothly inserted into the strip-shaped groove 10 of the cutting board 14.

In the embodiment of the present invention, both ends of the knife board 14 are respectively protruded outside the conveyor belt 9, thereby forming two triggering members 4. Correspondingly, two telescopic parts 8 are arranged on the moving device 5, and the two triggering parts 4 can be respectively matched with the two telescopic parts 8. When extensible member 8 is in the extension state, along with the removal of conveyer belt 9, the trigger part 4 of the both sides of conveyer belt 9 can support two extensible members 8 respectively, drives mobile device 5 through controlling two extensible members 8 and removes, has so ensured the equilibrium of mobile device 5 atress, has improved the stability that mobile device 5 removed.

The blade plates 14 may be provided on the surface of the conveyor belt 9, or may be provided between two sections of the conveyor belt 9. The blade plates 14 may be bolted to the belt 9 or may be glued to the belt 9. For the conveying belt 9 with a thicker thickness, a cutter board groove can be processed on the conveying belt 9, so that the cutter board 14 is placed in the cutter board groove.

As described above, after the cutting blade 13 finishes cutting, the retractable member 8 is retracted and the moving device 5 is reset. In order to ensure the accurate reset of the moving device 5, the embodiment of the present invention provides a reset device 12, and the reset device 12 may be a reset spring or a reset cylinder. If the moving device 5 can be accurately reset, the cut blanking 7 can be accurately dropped to the blanking area, so that the collection and the use of the blanking 7 are facilitated.

The cutting movement of the cutter 13 in the width direction of the conveyor belt 9 can be effected by a first drive. The cutter 13 is connected to an output end of the first driving device, which is capable of outputting a linear motion reciprocating in the width direction of the conveyor belt 9. The first driving device can be a cylinder, a transmission chain, an electric cylinder and the like.

The output end of the second drive means is capable of outputting reciprocating movements close to and away from the conveyor belt 9. The cutting knife 13 is connected to the output end of the second driving device, and the second driving device is connected to the output end of the first driving device. Namely, the cutting knife 13 is connected to the output end of the first driving device through the second driving device. The second driving device can drive the cutter 13 to be close to or far from the conveying belt 9, so that the cutting thickness of the cutter 13 can be adjusted through the second driving device, and the use flexibility of the cutter 13 is improved. In addition, when the cutting knife 13 is in a non-working state, the cutting knife can be in a contraction state under the driving of the second driving device, so that the safety of the operation is improved.

The cutter 13 can be sharpened on only one side, and can be contracted and reset after cutting is finished. The cut-off knife 13 can also be edged on two sides, and can be cut by moving left and right.

Referring to fig. 1, in the embodiment of the present invention, the conveyor belt 9 is designed as an annular structure, the conveyor belt 9 is sleeved on the frame 1, and the synchronous moving device is disposed below the negative pressure conveyor. The material 3 is first moved to the upper part of the conveyer belt 9 after being scattered from the material roll, then is adsorbed by the conveyer belt 9, and then moves to the lower part along with the conveyer belt 9. The end of the lower part of the conveyor belt 9 forms a blanking zone. The part of the frame 1 corresponding to the blanking area is not provided with a vent hole, so that negative pressure adsorption force does not exist in the blanking area, and the material 3 can fall under the action of self gravity.

In order to promote the falling of the material 3, in a specific embodiment of the invention, a blowing device is arranged in the part of the frame 1 corresponding to the blanking area, and the blowing device is used for blowing air to the part of the conveying belt 9 positioned in the blanking area, and air flow acts on the material 3 through the adsorption holes 11 on the conveying belt 9 so as to promote the falling of the material 3.

The vent holes can be uniformly distributed at the upper part and the lower part of the frame 1, or only at the lower part of the frame 1. If only the lower part of the frame 1 is provided with ventilation holes, the material 3 located below will be sucked up, thereby creating a drag force on the material 3 above and ensuring that the material 3 moves with the conveyor belt 9.

Referring to fig. 11, in one embodiment of the present invention, the synchronous moving device is disposed above the negative pressure conveyor. The material 3 is first moved to the lower part of the conveyor belt 9 after being scattered from the material roll, then is sucked by the conveyor belt 9, and then moves to the upper part along with the conveyor belt 9. The end of the upper part of the conveyor belt 9 forms a take-off area. The part of the frame 1 corresponding to the material taking area is not provided with a vent hole, so that negative pressure adsorption force does not exist in the material taking area, and therefore the subsequent equipment can clamp and take cut materials conveniently, and the assembly line operation can be carried out smoothly.

One side of material 3 is the working face, in order to avoid the working face of material 3 and conveyer belt 9 contact, the working face of limiting material 3 that is located on conveyer belt 9 is back to conveyer belt 9. The working surface of the material 3 on the conveyor belt 9 is ensured to be opposite the conveyor belt 9 by the working surface of the roll of limiting material facing the core or facing away from the core.

The operation process of the cutting device is as follows: the material 3 is dragged and moved onto the conveying belt 9, the material 3 moves to the lower part along the conveying belt 9, the triggering parts 4 on the left side and the right side of the conveying belt 9 abut against the two telescopic parts 8, the conveying belt 9 and the moving device 5 move synchronously, the cutting knife 13 on the moving device 5 extends upwards under the driving of the second driving device, and the cutting knife 13 moves along the width direction of the conveying belt 9 under the driving of the first driving device to finish cutting.

Finally, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cutting device, comprising:

the negative pressure conveyor comprises a rack (1) and a conveying belt (9) arranged on the rack (1), the rack (1) is provided with a negative pressure cavity, a plurality of air vents are formed in the negative pressure cavity, a plurality of adsorption holes (11) are formed in the conveying belt (9), the adsorption holes (11) are communicated with the inside of the negative pressure cavity through the air vents, the adsorption holes (11) are used for adsorbing materials (3), and a plurality of trigger parts (4) are arranged on the conveying belt (9) at intervals along the conveying direction of the conveying belt (9);

the synchronous moving device comprises a moving device (5) and a cutter (13), the trigger piece (4) can trigger the moving device (5) to move synchronously with the conveying belt (9), the cutter (13) is arranged on the moving device (5), and the cutter (13) can move along the width direction of the conveying belt (9) relative to the moving device (5).

2. The cutting device as claimed in claim 1,

the synchronous moving device comprises a sliding rail (6), the sliding rail (6) extends along the conveying direction of the conveying belt (9), a sliding block is matched on the sliding rail (6), and the moving device (5) is connected to the sliding block;

the moving device (5) is provided with a telescopic piece (8), and the telescopic piece (8) stretches along the direction close to and far away from the conveying belt (9); trigger member (4) are along the width direction of conveyer belt (9) stretches out the lateral part of conveyer belt (9) when extensible member (8) are in the extension state, trigger member (4) can touch extensible member (8) and pass through extensible member (8) drive mobile device (5) remove cut-off knife (13) are accomplished and are cut the back, extensible member (8) retract.

3. The cutting device according to claim 2, characterized in that a plurality of cutting boards (14) are arranged on the conveying belt (9) at intervals, the cutting boards (14) extend along the width direction of the conveying belt (9), a strip-shaped groove (10) is arranged on each cutting board (14), the strip-shaped groove (10) extends along the width direction of the conveying belt (9), the strip-shaped groove (10) is used for inserting the cutting knife (13), and at least one end of each cutting board (14) extends out of the conveying belt (9) to form the trigger (4).

4. The cutting device according to claim 2, characterized in that the two ends of the blade plate (14) respectively extend outside the conveyor belt (9) to form two trigger members (4), two telescopic members (8) are arranged on the moving device (5), and the two trigger members (4) can respectively cooperate with the two telescopic members (8).

5. The cutting device according to claim 2, further comprising a return device (12), the return device (12) being adapted to push the moving device (5) to a home position after the cutting by the cutter (13) is completed.

6. The cutting device according to claim 1, characterized in that the moving device (5) is provided with a first drive, the output end of which is capable of outputting a reciprocating movement in the width direction of the conveyor belt (9), the cutting knife (13) being connected to the output end of the first drive.

7. The cutting device according to claim 6, characterized in that the output of a second drive is capable of outputting a reciprocating movement towards and away from the conveyor belt (9), the cutting knife (13) being connected at the output of the second drive, which is connected at the output of the first drive.

8. The cutting device according to claim 1, characterized in that the conveyor belt (9) is endless, the synchronous moving device being arranged below the negative pressure conveyor, the end of the lower part of the conveyor belt (9) forming a blanking zone, the part of the frame (1) corresponding to the blanking zone being free of said ventilation holes.

9. The cutting device according to claim 8, characterized in that a blowing device is arranged in the portion of the frame (1) corresponding to the blanking area, for blowing air to the portion of the conveyor belt (9) located in the blanking area.

10. The cutting device according to claim 1, characterized in that the conveyor belt (9) is endless, the synchronous moving device being arranged above the negative-pressure conveyor, the end of the upper part of the conveyor belt (9) forming a discharge zone, the part of the frame (1) corresponding to the discharge zone being free of said ventilation holes.